The killer whales are using a kind of marine loofah to exfoliate. Rubbing the kelp between their bodies is a form of mutual grooming, and quite possibly, the first documented tool use for social ...

Researchers using a new drone say they have observed killer whales finding and modifying stalks of kelp to preen each other.

Behavioral ecologist Michael Weiss was browsing through new drone footage of the orca pods he studies in the Salish Sea when he spotted one of the killer whales carrying something green in its mouth ...

Scientists have spotted a subset of killer whales using seaweed to scratch each other’s backs, marking the first known ...

Orcas were spotted using kelp as a grooming tool on each other, the first known use of tools among cetaceans for something ...

The orcas clearly liked this activity because different whales were recorded preparing the stems eight times and rolling the ...

Killer whales have been seen detaching lengths of seaweed and using them to massage each other - the first evidence of tool-making by marine mammals. Scientists spotted this behaviour in drone footage ...

Sperm whales, the largest predators of the ocean, dive deep into the abyss, where no human dares to venture, and face off against the infamous killer whale in an epic battle. Why watch this video?

Scientists are discovering that killer whales, among the most social and intelligent of marine animals, have unique family structures and behaviors, passed from one generation to the next.

When scientists label a whale's death as part of an unusual mortality event, or UME, that doesn't mean that the whale's cause of death is a mystery. It means that more whales are dying than before.

Scientists have documented what might be the first case of friendly interactions between killer whales and smaller cetaceans.